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Finding the Fourth Proportional to 275,358.57, 380,001.36 and 154,508.79

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Solution

The fourth proportional to 275,358.57, 380,001.36 and 154,508.79 is: 213,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,358.57 : 380,001.36 = 154,508.79 : x
  2. Step 2: Convert to fraction form
    275,358.57/380,001.36 = 154,508.79/x
  3. Step 3: Cross multiply
    275,358.57x = 380,001.36 × 154,508.79
  4. Step 4: Simplify right side
    275,358.57x = 58,713,549,486.36
  5. Step 5: Solve for x
    x = 58,713,549,486.36/275,358.57
  6. Step 6: Final answer
    x = 213,225.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.